package cn.tyoui.ssm.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

public class LoginInterceptor implements HandlerInterceptor {

	@Override
	public boolean preHandle(HttpServletRequest request,
			HttpServletResponse response, Object handler) throws Exception {
		String url = request.getRequestURI();
		if (url.indexOf("login.action") >= 0)
			return true;
		String username = (String) request.getSession()
				.getAttribute("username");
		if (username != null)
			return true;
		request.getRequestDispatcher("/WEB-INF/jsp/login.jsp").forward(request,
				response);
		return false;
	}

	@Override
	public void postHandle(HttpServletRequest request,
			HttpServletResponse response, Object handler,
			ModelAndView modelAndView) throws Exception {

		System.out.println("HandlerInterceptor1...postHandle");

	}

	@Override
	public void afterCompletion(HttpServletRequest request,
			HttpServletResponse response, Object handler, Exception ex)
			throws Exception {
		System.out.println("HandlerInterceptor1...afterCompletion");
	}

}
